Cognomen Cubillos Peralta (Cubillos Peralta 
) , in the world, is an extremely rare family name. The cognomen Cubillos Peralta is habitual in Latin America and the Caribbean, particularly Ecuador, where it is a very rare surname, and Chile, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Cubillos Peralta | Ecuador, Chile |